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Re: Mixing Bolt Diameters

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Bullshit! Why someone would have to do that?  Mix bolts of different sizes
in a single connection? Are you "nuts"? or "bolts"?

Ivan Lippi
Structural engineer
----- Original Message -----
From: "Structures Online" <3.sol(--nospam--at)spectranet.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Monday, July 14, 2003 1:39 PM
Subject: Re: Mixing Bolt Diameters


> Carter, Charlie  wrote
>
>  "Mixing bolt diameters in a shear connection would probably not work. How
>  would the connection know how to send more load to the stronger bolts?
This
>  same idea would apply to any group of bolts sharing load equally."
>
> Dear Charlie
>
> The connection is a structure too, which deforms in proportion to it's
> stiffness. So, in a connection it is not possible for a smaller dia bolt
to
> deform more than a larger dia bolt (which it will have to, if equal loads
> are transferred to both the bolts). So the deformation will be governed by
> the larger dia bolt, which in turn will be the mechanism thru which the
> larger load (either shear, or tension/compression, or a mix of both) will
be
> transferred to the larger dia bolt.
>
> Please note that I am not commenting on any codal provisions,
practicality,
> or feasibility of the situation, but theoretically speaking, there should
be
> no problem with mixing different dia bolts in a single connection, as the
> bolts will take loads in proportion to their respective capacities.
>
> With all respect and regards
>
> Pankaj Gupta
> Structures Online
> India
>
>
>
>
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